Congestive Heart Failure Home > Digoxin

Digoxin is a medicine licensed to treat congestive heart failure and atrial fibrillation. This prescription drug works by blocking a certain enzyme in the body, allowing the heart to be more efficient at pumping blood throughout the body. It comes in the form of a tablet, an injection, and an oral liquid (elixir). Potential side effects include nausea, headaches, and dizziness.

What Is Digoxin?

Digoxin (Lanoxin®) is a prescription medication approved to treat the following conditions:
Digoxin belongs to a group of medicines called cardiac glycosides or digitalis glycosides. Digitalis medications, such as digoxin, are extracted from the digitalis plant, a plant more commonly known as foxglove.
This medication is available as a tablet, an injection, and an elixir (a liquid form taken by mouth).
(Click What Is Digoxin Used For? for more information on this topic, including possible off-label uses.)

Are There Side Effects?

Just like any medicine, digoxin can cause side effects. However, not everyone who takes the drug will experience problems. In fact, most people tolerate it quite well.
If reactions do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider. Serious side effects are less common.
Common side effects of digoxin include but are not limited to:
(Click Digoxin Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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